APA (7th ed.) Citation

Kasim, S., Ahmed, O. H., Nik Ab. Majid, N. M., & Yusop, M. K. (2008). Simple method of purifying humic acids isolated from tropical hemists (peat soil). Science Publications.

Chicago Style (17th ed.) Citation

Kasim, Susilawati, Osumanu Haruna Ahmed, Nik Muhamad Nik Ab. Majid, and Mohd Khanif Yusop. Simple Method of Purifying Humic Acids Isolated from Tropical Hemists (peat Soil). Science Publications, 2008.

MLA (9th ed.) Citation

Kasim, Susilawati, et al. Simple Method of Purifying Humic Acids Isolated from Tropical Hemists (peat Soil). Science Publications, 2008.